EP0254505B1 - Distributeur de liquide du type à gâchette - Google Patents

Distributeur de liquide du type à gâchette Download PDF

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Publication number
EP0254505B1
EP0254505B1 EP87306367A EP87306367A EP0254505B1 EP 0254505 B1 EP0254505 B1 EP 0254505B1 EP 87306367 A EP87306367 A EP 87306367A EP 87306367 A EP87306367 A EP 87306367A EP 0254505 B1 EP0254505 B1 EP 0254505B1
Authority
EP
European Patent Office
Prior art keywords
cylindrical member
intake
trigger
engaging
piston unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP87306367A
Other languages
German (de)
English (en)
Other versions
EP0254505A3 (en
EP0254505A2 (fr
Inventor
Takaharu Tasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yoshino Kogyosho Co Ltd
Original Assignee
Yoshino Kogyosho Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP1986111764U external-priority patent/JPH0446844Y2/ja
Priority claimed from JP1986203540U external-priority patent/JPH064920Y2/ja
Priority claimed from JP1987105112U external-priority patent/JPH0716051Y2/ja
Priority claimed from JP1987105113U external-priority patent/JPH0716052Y2/ja
Application filed by Yoshino Kogyosho Co Ltd filed Critical Yoshino Kogyosho Co Ltd
Publication of EP0254505A2 publication Critical patent/EP0254505A2/fr
Publication of EP0254505A3 publication Critical patent/EP0254505A3/en
Application granted granted Critical
Publication of EP0254505B1 publication Critical patent/EP0254505B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1009—Piston pumps actuated by a lever
    • B05B11/1011—Piston pumps actuated by a lever without substantial movement of the nozzle in the direction of the pressure stroke

Definitions

  • the present invention relates to a trigger type liquid dispenser adapted to be mounted on a liquid container to dispense or atomize liquid in the container.
  • a conventional trigger type liquid dispenser is disclosed, for example, in Japanese Patent Publication No. 41726/1979 and Japanese Utility Model Publication No 920/1986. Each of these has a dispenser body detachably engaged with the neck of a liquid container, a pump manually driven by a trigger to intake the liquid in the container in the body, and a nozzle unit for exhausting the pressurized liquid to exhaust the liquid of the container by manually operating the trigger.
  • the liquid dispenser disclosed in Japanese Patent Publication No. 41726/1979 further employs a pump chamber which is also used as a spring chamber having a spring mounted in the pump chamber so that the spring is always dipped directly in the exhausting liquid.
  • the spring is readily rusted or dissolved in the liquid, and this type has such a drawback that the dispenser is restricted in utility.
  • the liquid dispenser disclosed in Japanese Utility Model Publication No. 920/1986 employs inner and outer cylindrical members, and uses the inner cylindrical member as a pump chamber and a spring mounted in the pump chamber so that the spring is always dipped in the discharging liquid.
  • This dispenser also has similar drawback to the above dispenser.
  • the above Japanese Utility Model Publication No. 920/1986 discloses an atomizing head (exhaust element) of a trigger unit to be covered on the end of an injecting cylinder (exhausting cylinder).
  • the trigger is separated from the atomizing head differently from a conventional dispenser, the result is that it is difficult to position the exhaust element smoothly at the accurately assembling position of the body in the step of assembling the exhaust element at the body in case of assembling the dispenser when the exhaust element is not engaged with the end of the exhaust cylinder but covered thereon.
  • this hardly improves the assembling productivity.
  • the conventional trigger type liquid dispenser is constructed as disclosed in Japanese Utility Model Publication No. 920/1981 in that the inner cylindrical member is merely inserted into the outer cylindrical member.
  • liquid may leak from the engaging surface between the outer cylindrical member and the inner cylindrical member in the case of exhausting the liquid by the operation of the trigger to reduce the exhausting efficiency.
  • a trigger type liquid dispenser of the type which can reduce the leakage of the liquid from the engaging surface between the outer cylindrical member and the inner cylindrical member is accordingly desired.
  • one primary aim of the present invention to provide a trigger type liquid dispenser which can eliminate the above-mentioned troubles, drawbacks and disadvantages of the conventional liquid dispenser and can protect a spring, complete a pumping action and smoothly execute the intaking operation of a liquid container.
  • Another aim of the present invention is to provide a trigger type liquid dispenser which can eliminate the removal of a trigger from a body irrespective of the rotating position of the trigger.
  • Yet another aim of the present invention is to provide a trigger type liquid dispenser which can readily and rapidly assemble an exhaust cylindrical member with an engaging cylindrical portion in case of assembling an exhaust element with a body.
  • Still another aim of the invention is to provide a trigger type liquid dispenser which can much reduce the leakage of the liquid from the liquid dispenser to increase the exhausting efficiency.
  • a trigger type liquid dispenser which is characterised by the following features :
  • the spring is not dipped in the exhaust liquid. Since the spring is completely contained in the spring chamber, the spring itself is not damaged nor does it hurt the operator, but the pumping action of the pump can be competely executed to smoothly execute the intaking operation of the liquid container, and no liquid is leaked from the dispenser.
  • a trigger type liquid dispenser further comprises a pair of opposed right and left lip-shaped engaging grooves formed in section on the inner surface of the sidewall of a body, a pair of lugs, each having a base and an end of larger diameter than the base, projected perpendicularly to the trigger oppositely from both lateral sides thereof at the fork portions of the trigger in such a manner that the ends of the lugs are inserted into the spaces of the grooves respectively, the bases of the lugs disposed respectively in the spaces formed at the fork portions being narrower than the spaces of the grooves of the body and the ends of the lugs being rotatably restricted in the grooves of the body.
  • the trigger can be reliably mounted on the body irrespective of the mounting of the nozzle.
  • the upper end of the sidewall of the trigger can be always restricted at the ends of the lug with the engaging grooves irrespective of the rotating position of the trigger to eliminate the removal of the trigger from the body.
  • a trigger type liquid dispenser having an exhaust cylindrical member projected in a bore surrounded by an upper wall, a left sidewall and a right sidewall of a body and a piston unit telescoped by a trigger in the bore comprises a guide rail projected to arrive at the front end of the body in parallel with the exhaust cylindrical member in the upper wall, and guide pieces projected on the outer surface of the engaging cylindrical portion in parallel with the axial direction of the engaging portion to interpose the guide rail therebetween.
  • the exhaust element can be accurately and smoothly assembled with the body.
  • the engaging position of the exhaust cylindrical member with the engaging cylindrical portion can be readily defined in case of assembling the exhaust element with the body to rapidly execute the assembling steps thereafter.
  • the liquid leakage can be eliminated.
  • the liquid to be able to be leaked under pressure to a gap between the intake outer cylindrical member and the engaging cylindrical portion of the intake inner cylindrical member is much reduced due to the engaging surface between the extended cylindrical portion and the engaging annular cylindrical groove in addition to the engaging surface between the intake outer cylindrical member and the engaging cylindrical portion of the intake inner cylindrical member to thereby increasing the exhausting efficiency of the liquid.
  • a trigger type liquid dispenser has a nozzle unit 2 having a nozzle 1 at its front end, a pump 4 operated by a trigger 3 and a container mount 5.
  • the pump 4 operated by the trigger 3 has an annular cylinder 9 having concentric outer and inner cylindrical members 7 and 8 of double wall shape projected forwardly of a body 6, and a piston unit 12 telescoped in the annular cylinder 9 and having an annular piston 49 sliding on the inner surface 10 of the outer cylindrical member 7 and the outer surface 11 of the inner cylindrical member 8.
  • the piston unit 12 has an inner skirt 14 annularly flared inwardly at the axially inner edge of the inner sliding surface 13 as the sliding surface of the piston unit 12 with the outer surface 11 of the inner cylindrical member 8, inside outer skirt 16 and outside outer skirt 17 flared outwardly at the axially inner and outer edges of the outer sliding surface 15 as the sliding surface of the piston unit 12 with the inner surface 10 of the outer cylindrical member 7 to form the annular piston 49.
  • a spring 20 is contained in a spring chamber 19 formed of a bore 18 made of the inner cylindrical member 8 of the annular cylinder 9 and the piston unit 12 telescoped in the inner cylindrical member 8 at the axial center side for urging the piston unit 12 outward of the axial center.
  • the spring chamber 19 always communicates with the atmosphere through an air opening 22 perforated at the head 21 of the piston unit 12 as shown in Figs. 2 and 4.
  • An intake valve 23 is formed of the outside outer skirt 17 and the inside outer skirt 16 formed at outer cylindrical member 7 and the outer sliding surface 16 of the piston unit 12 to intake the atmospheric air supplied to the container whenever the piston unit 12 is operated by the trigger to be described later.
  • An intake outer cylindrical member 24 is elevationally formed adjacent to the rear end of the annular cylinder 9 of the body 6, and an intake inner cylindrical member 25 is engaged within the intake outer cylindrical member 24.
  • An engaging portion 26 is flared at the lower end of the intake inner cylindrical member 25, and a flange 27 is projected to contact with the neck of the container.
  • An engaging outer ring 28 fixedly secured to the engaging portion 26 of the intake inner cylindrical member 25 and an engaging groove 29 formed at the lower edge of the body 6 to be inserted with the engaging portion 25 perform a function of preventing the intake inner cylindrical member 25 from being removed out of the body 6 by inserting the engaging outer ring 28 into the groove 29 of the body 6.
  • a cap 30 is rotatably engaged with the flange 27 so as not to remove from the flange 27 to form the container mount 5.
  • a dip tube 31 which can arrive at the bottom of the container is inserted into the lower end of the intake inner cylindrical member 25 in the cap 30, a ball valve seat 33 is formed through a valve opening 32 at the upper end of the tube 31, a cylindrical intervalve chamber 34 is formed above the ball valve seat 33, and a ball valve 35 is contained in the intervalve chamber 34.
  • a cylinder chamber 36 formed between the outer cylindrical member 7 and the inner cylindrical member 8 of the pump 4 communicates with the intervalve chamber 34 through a cylinder opening 37 perforated at the bottom of the cylinder chamber 36 and an intake inner cylindrical member opening 38 perforated at the intake inner cylindrical member 25.
  • a large-diameter exhaust valve chamber 39 is integrally formed at the upper end of the intervalve chamber 34, and an exhaust valve body 40 is mounted in the valve chamber 39.
  • the exhaust valve body 40 is formed at its lower end with a valve flange 42 to be contacted with an exhaust valve seat 41 formed at the lower end of the exhaust valve chamber 39, is formed at its upper end with a connecting end 43 to be connected with the exhaust valve chamber 39, and is formed with a double ring-shaped stretchable elastic portion 44 at the intermediate between the connecting end 43 and the valve flange 42 for ordinarily urging the valve flange 42 in a direction to contact with the exhaust valve seat 41.
  • An exhaust passage 45 is formed from the exhaust valve chamber 39 forwardly to communicate with the nozzle 1 of the nozzle unit 2.
  • a connecting opening 46 is perforated at the upper end of the engaging portion 26 of the inner cylindrical member 25, a vent hole 47 is perforated at the lowermost side of the outer cylindrical member 7, and the vent hole 47 communicates through a groove 48 with the connecting opening 46.
  • vent hole 47 is so perforated, as shown in Fig. 2, at the intermediate that the inside outer skirt 16 and the outside outer skirt 17 are contacted with the inner surface of the outer cylindrical member where the piston unit 12 is disposed to be forwardly projected at the frontmost side, that the piston unit 12 is retreated by the trigger 3 to be disposed forwardly from the position of the outside outer skirt 17.
  • the nozzle unit exemplified in the drawings may employ various shapes.
  • the nozzle unit illustrated in the drawings is for foaming or spraying.
  • the cylinder 9 of the pump 4 is formed in double of inner and outer cylindrical members in such a manner that the spring chamber 19 is formed in the inner cylindrical member 8 and the spring chamber 19 always communicates with the atmosphere, the spring 20 is not dipped in the exhausted liquid at all, the spring 20 is not thus rusted nor dissolved to cause no trouble to occur due to the spring 20. Further, since the cylinder chamber 36 is formed between the inner and the outer cylindrical members and the skirts 14, 16 are formed at the sliding portions of the piston unit 12 and the cylinder chamber 35, a separate seal is not necessary.
  • the dispenser can be readily mounted at various liquid containers to be operated simply to be thus adapted for a variety of liquid dispensers.
  • a trigger type liquid dispenser of this modified example has a nozzle unit 52 having a nozzle 51 at its front end, a pump 54 operated by a trigger 53 and a container mount 55.
  • the pump 54 operated by the trigger 53 has an annular cylinder 59 having concentric outer and inner cylindrical members 57 and 58 of double wall shape projected forwardly of a body 56, and a piston unit 62 telescoped in the annular cylinder 59 and having an annular piston 50 sliding on the inner surface 60 of the outer cylindrical member 57 and the outer surface 61 of the inner cylindrical member 58.
  • the piston unit 62 has a head 71 contacted with the trigger 53, a piston outer cylindrical member 74 formed at its rear end with the annular piston 50 telescoped in the annular cylinder 59 formed of the outer and inner cylindrical members 57, 58, and a piston inner cylindrical member 75 telescoped in the inner cylindrical member 58 cooperatively provided with the piston outer cylindrical member 74 in a double wall shape.
  • the annular piston 50 has an inner skirt 64 annularly flared inwardly at the axially inner edge of the inner sliding surface 63 as the sliding surface of the piston unit 62 to be slidably contacted with the outer surface 61 of the inner cylindrical member 58, an outer skirt 66 annularly flared outwardly at the axially inner edge of the outer sliding surface 55 as the sliding surface of the piston unit 62 to be slidably contacted with the inner surface 60 of the outer cylindrical member 57, and an inner cylindrical skirt 77 annularly flared outwardly at the inner edge of the piston inner cylindrical member 75 to be slidably contacted with the small-diameter inner surface 76 of the inner cylindrical member 58 near the end of the inner cylindrical member 58.
  • a spring 70 is contained in a spring chamber 69 formed of a bore 68 made of the inner cylindrical member 58 of the annular cylinder 59 and the piston unit 62 telescoped in the inner cylindrical member 58 for urging the piston unit 62 outward of the axial center.
  • the inner surface of the inner cylindrical member 58 is formed as a large-diameter inner surface 78 to the rear end continued to the small-diameter inner surface 61 near the end of the inner cylindrical member 58.
  • a vent hole 79 is perforated at the rear end of the spring chamber 69, and an air opening 72 is perforated at the piston outer cylindrical member 74 to communicate with the atmosphere.
  • An outer cylindrical member 81 is elevationally formed adjacent to the rear ends of the annular cylinder 59 of the body 56 and the spring chamber 69, and an inner cylindrical member 82 is engaged within the outer cylindrical member 81.
  • An engaging portion 83 is flared at the lower end of the inner cylindrical member 82, and a flange 84 is projected to contact with the neck of the container.
  • An engaging outer ring 28 fixedly secured to the engaging portion 83 of the intake inner cylindrical member 82.
  • a cap 85 is rotatably engaged with the flange 84 so as not to remove from the flange 84 to form the container mount 55.
  • a dip tube 86 which can arrive at the bottom of the container is inserted into the inner cylindrical member 82, an intake valve seat 88 is formed through an intake valve opening 87 at the upper end of the tube 86, an intervalve chamber 89 is formed above the intake valve seat 88, and an intake valve 93 integrally formed with an intake valve sheet 92 through an elastic support 91 at an intake valve head 90 is mounted in the intervalve chamber 89.
  • the annular cylinder 59 of the pump 59 communicates through a cylinder opening 80 perforated at the bottom of the cylinder 59 with the intervalve chamber 89.
  • the intervalve chamber 89 communicates through an exhaust valve opening 94 perforated at the forward side and an exhaust valve seat 95 with an exhaust valve chamber 96, and an exhaust valve 100 integrally formed through an elastic support 98 with an exhaust valve head 97 is mounted in the exhaust valve chamber 96.
  • An exhaust passage 45 is formed from the exhaust valve chamber 97 forwardly to communicate with the nozzle 51 of the nozzle unit 52.
  • a connecting opening 102 is perforated at the upper end of the engaging portion 83 of the inner cylindrical member 82, and the vent hole 79 communicates through a groove 103 with the connecting opening 102.
  • the inner cylindrical skirt 77 is contacted with the small-diameter inner surface 76 of the inner cylindrical member 58 when the piston unit 62 is disposed to be forwardly projected at the frontmost side in Fig. 5 to shut off the spring chamber 69 from the atmosphere.
  • the trigger 53 is operated and the piston unit 62 is retreated, the liquid in the annular cylinder 59 is exhausted from the nozzle 51 by the operation of the annular piston 50, and the inner cylindrical skirt 77 is simultaneously moved backward.
  • the intake valve is composed of the inner cylindrical skirt 77 of the piston unit 62, the small-diameter inner surface 77 and the large-diameter inner surface 78.
  • the annular cylinder 59 and the spring chamber 69 are separately disposed, the spring 70 is not dipped in the exhausted liquid.
  • the intake valve 73 is formed, the atmospheric air is supplied to the container as the piston unit 62 is telescoped by the trigger 53 to prevent the pumping efficiency from decreasing. Even if the liquid is leaked to the spring chamber 69, it is preferentially intaken into the container, thereby entirely eliminating wasteful leakage of the exhausted liquid.
  • the various dispenser can be readily mounted at the container to be adapted for a variety of liquid dispensers.
  • a trigger type liquid dispenser of the second embodiment further comprises, in the first embodiment, a pair of opposed right and left lip-shaped engaging grooves 115 formed in section as shown in Fig. 10 on the inner surface 114 of the sidewall 110 of a body 6 as shown in Figs. 7, 8 and 10, 11, a pair of lugs 120 each having a base 118 and an end 119 of larger diameter than the base 118, projected perpendicularly to the trigger 3 oppositely from both lateral sides thereof at the fork portions 117 of the trigger 3 as shown in Figs. 13 and 14 in such a manner that the ends 119 of the lugs 120 are inserted into the spaces 121 of the grooves 115, respectively as shown in Fig.
  • the bases 118 of the lugs 120 are disposed respectively in the spaces 122 formed at the fork portions 117 to be narrower than the spaces 121 of the grooves 115 of the body 6 and the ends 119 of the lugs 120 are rotatably restricted in the grooves 115 of the body 6.
  • Projecting strips 128 shown in Figs. 8, 10 to 12 are projected on the inner surface of the sidewalls 110 of the body 6 at the position for holding the lugs 120 of the rotating trigger 3 at the longitudinal and lateral positions of the lugs 120 as shown in Fig. 12.
  • the fork portions 117 are contacted with exhaust elements 109 irrespective of the rotation of the trigger 3.
  • the lugs are not necessarily contacted inwardly due to the nozzle to prevent the fork portions of the trigger from being inwardly overturning irrespective of the rotation of the trigger so that the trigger can be rotatably restricted even during the temporary assembling work and after the assembling is completed.
  • a third embodiment of a trigger type liquid dispenser according to the present invention will now be described.
  • a trigger type liquid dispenser of this third embodiment having, as shown in Fig. 6, an exhaust cylindrical member 126 projected in a bore 125 surrounded by an upper wall 111, a left sidewall 112 and a right sidewall 113 of a body 6 and a piston unit 12 telescoped by a trigger 3 in the bore 125 comprises a guide rail 130 projected to arrive at the front end 116 of the body 6 in parallel with the exhaust cylindrical member 126 in the upper wall 111 as shown in Figs. 6 to 8, and engaging cylindrical portions 132 of the exhaust elements 109 are covered on the ends of the exhaust cylindrical members 126 as shown in Fig. 6.
  • the exhaust elements 109 are formed in the shape as shown in Figs.
  • a nozzle unit engaging cylindrical member 129 is projected to mount a nozzle unit 2 from which a nozzle 1 is projected, at the forward side of the flange 133.
  • the guide rail of the body side is interposed to be held between the guide pieces of the exhaust element side in case of assembling to cover the exhaust cylindrical portion with the exhaust element as described above, the assembling position of the exhaust element is reliably established, the exhaust element can be thereafter readily and rapidly associated to cover the exhaust cylindrical portion to improve the assembling productivity.
  • a fourth embodiment of a trigger type liquid dispenser according to the present invention will be described.
  • the body 6 is mounted through a flange 17 of the intake inner cylindrical member 25 engaged with the mounting short cylindrical member 104, a packing 108 and a cap 30 at a liquid container, and the liquid in the liquid container is exhausted from the liquid container via a nozzle 1 through a dip tube 31, a ball valve 35, an exhaust valve body 40, an exhaust element 109 and a nozzle unit 2 by the operation of the piston unit 12 telescoped by the trigger 3 and the spring 20.
  • the intake inner cylindrical member is inserted into the intake outer cylindrical member by engaging the extended cylindrical portion into the engaging annular cylindrical groove as described above in this embodiment, the possibility of leaking the liquid from a gap between the intake outer cylindrical member and the intake inner cylindrical member is much reduced as compared with a conventional liquid container in which the intake inner cylindrical member is merely engaged with the intake outer cylindrical member to entirely eliminate in fact the leakage of the liquid from the liquid container and to improve the liquid exhausting efficiency by the same trigger operation as the liquid dispenser.
  • the cylinder of the pump is formed in double wall cylindrical members so that the inner cylindrical member forms therein the spring chamber and the atmospheric air is introduced into the spring chamber, the spring is not dipped in the exhausted liquid, the spring is not thus rusted nor dissolved in the liquid to eliminate a trouble caused by the spring.
  • the skirts are formed at the sliding portions of the annular cylinder and the piston unit in these embodiments, separate seal is not necessarily provided to form the intake valve, the atmospheric air is supplied to the container as the piston unit is telescoped by the trigger to prevent the pumping efficiency from decreasing due to the negative pressure in the container, thereby entirely obviating the wasteful leakage of the exhaust liquid. Even if the liquid container is preserved or allowed to stand for a long period of time while the liquid container is mounted with the dispenser, no liquid is leaked from the container so that the dispenser can be readily and rapidly mounted on or dismounted from the liquid container.

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  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Claims (4)

  1. Distributeur de liquide du type à détente ayant une unité de buse (2) qui comprend une buse (1) à son extrémité avant, une pompe (4) commandée par une détente (3), la pompe (4) ayant un cylindre annulaire (9) qui comprend des éléments cylindriques concentriques extérieur et intérieur (7, 8) faisant saillie en avant d'un corps (6), une unité de piston (12) et un ressort (20) qui est contenu dans une chambre (19) de ressort formée par un alésage (18) dans l'élément cylindrique intérieur (8) du cylindre annulaire (9) et qui sollicite l'unité de piston (12) vers l'extérieur du cylindre annulaire (9), et une monture (5) de récipient,
       caractérisé en ce que
    (a) l'unité de piston (12) logée télescopiquement dans le cylindre annulaire (9) comporte un piston annulaire (49) coulissant sur la surface intérieure (10) de l'élément cylindrique extérieur (7) et sur la surface extérieure (11) de l'élément cylindrique intérieur (8) ;
    (b) l'unité de piston (12) comporte des jupes (14, 16, 17) évasées en anneau aux bords axiaux des surfaces coulissantes (13, 15) qui coopèrent avec les surfaces (11, 10) des éléments cylindriques intérieur et extérieur (8, 7) pour former une chambre de pompe ;
    (c) l'unité de piston (12) est disposée télescopiquement autour de l'élément cylindrique intérieur (8) ;
    (d) la chambre (19) de ressort peut communiquer avec l'atmosphère par l'intermédiaire de l'unité de piston (12) ; et
    (e) un clapet d'admission (23) est prévu sur l'élément cylindrique extérieur (7) pour permettre à l'air atmosphérique de communiquer avec un col d'un récipient sur lequel le distributeur est monté lorsque l'unité de piston (12) est commandée par la détente.
  2. Distributeur de liquide du type à détente selon la revendication 1, caractérisé en ce qu'il comporte en outre deux gorges opposées droite et gauche (115) d'enclenchement en forme de lèvres formées dans une partie sur la surface intérieure (114) de la paroi latérale (110) du corps (6), deux tenons (120) ayant chacun une base (118) et une extrémité (119) de plus grand diamètre que la base (118), faisant saillie perpendiculairement à la détente (3) dans des directions opposées sur ses deux côtés latéraux en des parties de fourche (117) de la détente (3) de manière que les extrémités (119) des tenons (120) soient insérées dans les espaces (121) des gorges (115), respectivement, les bases (118) des tenons (120) étant disposées, respectivement, dans les espaces (122) formés aux parties de fourche (117) étant plus étroites que les espaces (121) des gorges (115) du corps (6) et les extrémités (119) des tenons (120) étant retenues en rotation dans les gorges (115) du corps (6).
  3. Distributeur de liquide du type à détente selon la revendication 1, comportant un élément cylindrique (126) d'échappement faisant saillie dans une lumière (125) entourée par une paroi supérieure (111), une paroi latérale gauche (112) et une paroi latérale droite (113) du corps (6) et une unité de piston (12) à laquelle est reliée télescopiquement une détente (3) dans la lumière (125), caractérisé en ce qu'il comporte en outre un rail (130) de guidage faisant saillie de façon à arriver à l'extrémité avant (116) du corps (6) parallèlement à l'élément cylindrique (126) d'échappement dans la paroi supérieure (111), ainsi que des pièces (134, 134) de guidage faisant saillie sur la surface extérieure de la partie cylindrique d'enclenchement (132) parallèlement à la direction axiale de la partie d'enclenchement (132) pour interposer le rail de guidage (130) entre elles.
  4. Distributeur de liquide du type à détente selon la revendication 1, comportant un élément cylindrique extérieur (24) d'admission ouvert à son extrémité inférieure avec le corps (6), et un élément cylindrique intérieur creux (25) d'admission ayant un clapet à bille (35) d'un corps de clapet d'admission et un corps (40) de clapet d'échappement engagé dans l'élément cylindrique extérieur (24) d'admission pour permettre la distribution de liquide par la détente (3), caractérisé en ce qu'il comporte en outre une structure de montage de l'élément cylindrique intérieur d'admission ayant un élément cylindrique court (104) de montage évasé vers l'extérieur à l'extrémité inférieure du corps (6) et réalisé d'une seule pièce avec l'élément cylindrique extérieur (24) d'admission, une partie cylindrique prolongée (105) faisant saillie de l'extrémité inférieure de l'élément cylindrique extérieur (24) d'admission pour pénétrer dans l'élément cylindrique court (104) de montage, la partie cylindrique (106) d'enclenchement de l'élément cylindrique intérieur (25) d'admission étant insérée dans l'élément cylindrique extérieur (24) d'admission, et une gorge cylindrique annulaire (107) d'enclenchement ménagée en creux sur la périphérie de l'extrémité inférieure de la partie cylindrique (106) d'enclenchement afin que la partie cylindrique prolongée (105) soit insérée dans la gorge cylindrique annulaire (107) d'enclenchement et que l'extrémité inférieure de l'élément cylindrique intérieur (25) d'admission soit évasée pour être insérée dans l'élément cylindrique court (104) de montage.
EP87306367A 1986-07-21 1987-07-17 Distributeur de liquide du type à gâchette Expired EP0254505B1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP1986111764U JPH0446844Y2 (fr) 1986-07-21 1986-07-21
JP111764/86 1986-07-21
JP203540/86 1986-12-27
JP1986203540U JPH064920Y2 (ja) 1986-12-27 1986-12-27 トリガ式液体噴出器
JP1987105112U JPH0716051Y2 (ja) 1987-07-08 1987-07-08 液体吐出器のインテーク内筒体取付構造
JP105112/87 1987-07-08
JP1987105113U JPH0716052Y2 (ja) 1987-07-08 1987-07-08 液体吐出器の吐出エレメントの取付構造
JP105113/87 1987-07-08

Publications (3)

Publication Number Publication Date
EP0254505A2 EP0254505A2 (fr) 1988-01-27
EP0254505A3 EP0254505A3 (en) 1989-07-12
EP0254505B1 true EP0254505B1 (fr) 1992-04-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP87306367A Expired EP0254505B1 (fr) 1986-07-21 1987-07-17 Distributeur de liquide du type à gâchette

Country Status (4)

Country Link
US (1) US4819835A (fr)
EP (1) EP0254505B1 (fr)
AU (1) AU608522B2 (fr)
DE (1) DE3778441D1 (fr)

Families Citing this family (90)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4917303A (en) * 1988-09-26 1990-04-17 Afa Products, Inc. Snap-in trigger
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EP0254505A3 (en) 1989-07-12
AU7595387A (en) 1988-01-28
DE3778441D1 (de) 1992-05-27
EP0254505A2 (fr) 1988-01-27
US4819835A (en) 1989-04-11
AU608522B2 (en) 1991-04-11

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